jQuery：如何读取Django视图返回的自定义对象？ [英] jQuery: How to read custom object returned by Django view?

问题描述

这里是我的 django视图

@csrf_exempt
@login_required
def get_playlists_for_user(request):
    """
    gets all playlists for user
    """
    logging.info('getting playlist for user - ' + str(request.user))
    playlists = UserPlaylist.objects.get_all_playlists_for_user(request.user)
    logging.info('user=%s, playlists=%s'%(request.user, playlists))
    return HttpResponse(playlists)

这是如何 jQuery 通过调用ajax

$.ajax({
        url: '/getUserPlaylists',
        success: function(response, textStatus, jqXHR){

            console.log(response);
        },
        error: function(response, textStatus, jqXHR) {

        }
});

视图返回播放列表对象列表

the view return the list of Playlist objects

playlists=[<Playlist id:1, name:first, date_created:2012-08-05 06:28:31.954623+00:00, deleted:False>, <Playlist id:2, name:my, date_created:2012-08-06 12:47:13.023537+00:00, deleted:False>, <Playlist id:3, name:new, date_created:2012-08-06 12:48:45.708277+00:00, deleted:False>, <Playlist id:5, name:second, date_created:2012-08-06 21:19:33.050187+00:00, deleted:False>]

Playlist 的模式模型是

class Playlist(models.Model):
    name = models.CharField(max_length=30)
    date_created = models.DateTimeField(auto_now_add=True)
    date_modified = models.DateTimeField(auto_now=True)
    deleted = models.BooleanField(default=False)

当我登录firebug时，我看到他们为

When I log them in firebug I see them as

Playlist objectPlaylist objectPlaylist objectPlaylist object

如何在jQuery中读取这些对象？

How can I read these objects in jQuery?

推荐答案

你需要返回一个表单中的Python对象，javascript可以理解哪个通常是 json （JavaScript对象符号）。所以在你看来，使用django的 serializer 将你的django queryset转换成json：

You need to return the Python objects in a form javascript can understand which is usually json (javascript object notation). So in your view, convert your django queryset into json, using django's serialisers:

from django.core import serializers
...
json = serializers.serialize('json', playlists)
return HttpResponse(json, mimetype="application/json")

和在您的ajax中：

$.ajax({
       url: '/getUserPlaylists',
       dataType: "json",
       success: function(response, textStatus, jqXHR){
           for(var i = 0; i < response.length; i++ ){
               var playlist = response[i]['fields'];
               // Do something now with your playlist object
               console.log(playlist.name);
           }
       },
       error: function(response, textStatus, jqXHR) {
       }
});

这将意味着您的ajax中的响应 成功将是这样的（一个javascript对象的列表）：

this will mean the response in your ajax success will be something like this (a list of javascript objects) :

[{ "model" : "playlist.Playlist", "pk" : 1, "fields" : { "name" : "...", ... } }]

这篇关于jQuery：如何读取Django视图返回的自定义对象？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！